BA -445 [Great Phyllopod Bed, Walcott Quarry Mbr, Burgess Shale Fm] (Cambrian of Canada)

Where: British Columbia, Canada (51.4° N, 116.5° W: paleocoordinates 3.7° S, 80.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Walcott Quarry Member (Burgess Shale Formation), Delamaran (513.0 - 505.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Great Phyllopod Bed of the Walcott Quarry Member, Burgess Shale Fm, Chancellor Gp, which overlies the Wash Limestone Mbr, and is overlain by the Raymond Quarry Shale Mbr. AGE: early Middle Cambrian, Delamaran North American stage. STRATIGRAPHIC POSITION: From 20 mm thick bed, 445 cm below "lower ginger layer, representing the base of the "Phyllopod Bed".

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, calcareous siltstone and lithified, cherty/siliceous mudstone

• ENVIRONMENT: Deep-water depositional environment.
• SPECIFIC LITHOLOGY: Cm-scale interbedded siliceous mudstone and calcisiltites. LITHIFICATION: Lithified.

Size class: macrofossils

Preservation: cast, mold/impression, adpression, soft parts

Reposited in the ROM

Collection methods: quarrying,

• COLLECTOR: Royal Ontario Museum staff. REPOSTORY: Royal Ontario Museum (ROM).

Primary reference: J.-B. Caron and D. A. Jackson. 2008. Paleoecology of the Greater Phyllopod Bed community, Burgess Shale. Palaeogeography, Palaeoclimatology, Palaeoecology 258:222-256 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 84415: authorized by Austin Hendy, entered by Austin Hendy on 18.10.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for all taxa. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
unclassified
  -
Morania
  -
Morania sp. Walcott 1919
Demospongiae
 Protomonaxonida - Hamptoniidae
Hamptonia bowerbanki Walcott 1920 demosponge
 Protomonaxonida - Takakkawiidae
Takakkawia lineata Walcott 1920 demosponge
 Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920 demosponge
Bosworthia
  -
Bosworthia sp. Walcott 1919
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Chancelloria eros Walcott 1920
Burgessia
  -
 Bradoriida - Svealutidae
Trilobita
 Ptychopariida - Alokistocaridae
 Ptychopariida - Ptychopariidae
Elrathina cordillerae Rominger 1887 trilobite
Artiopoda
 Nektaspidida - Naraoiidae
Naraoia compacta Walcott 1912
 Agnostida - Peronopsidae
"Ptychagnostus praecurrens" = Pentagnostus praecurrens
"Ptychagnostus praecurrens" = Pentagnostus praecurrens WestergÄrd 1936
 Vicissicaudata -
Crustacea
 Waptiida - Waptiidae
Waptia fieldensis Walcott 1912
 Canadaspidida - Canadaspididae
Canadaspis perfecta Walcott 1912
Deuteropoda
 Hymenocarina - Perspicarididae
Megacheira
 Yohoiida - Yohoiidae
 Archaeopriapulida - Selkirkiidae
Selkirkia columbia Conway Morris 1977
Paterinata
 Paterinida - Paterinidae
Lingulata
 Lingulida - Obolidae
Rhynchonellata
 Orthida - Bohemiellidae
Hyolitha
 Hyolithida - Hyolithidae
 Sachitida -
Wiwaxia corrugata Matthew 1899
Tergomya
 Scenelloidea - Scenellidae
Scenella amii Matthew 1902
 Bilateria - Eldoniidae
Eldonia ludwigi Walcott 1911
Pollingeria grandis
  - Wiwaxidae
Pollingeria grandis Walcott 1911
Marrellomorpha
 Marrellida -